productInformation on compact burners

Digital combustion technologyWeishaupt oil burners, WL10 to WL40 (30 – 570 kW)

Hot for quality

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Technological progress is our motivation.It has been driving us for more than 50years to set new standards for the combustion industry.

Weishaupt’s own Research and Development Centre is constantly working both on new developmentsand on the optimisation of exisitng products.

It is our goal and our responsibility to goabove and beyond current legislative requirements in developing combustionsystems which produce ever loweremissions, save ever more energy, andin so doing combine ecology and economy in a practical manner.

Therefore, not only do we invest in research and technology but we alsoonly ever work with the best materialsusing the latest tools, and we carry out meticulous quality control checks.

It has been proven over a million timesin the field that heating specialists and customers hold Weishaupt burners tobe reliable, long-lasting, environmentallyfriendly, and technologically advanced;a fact also borne out by our numerous prizes for design and innovation.

Every day, more than 600 burners aremanufactured at our ultra-modern production facilities in Schwendi in southern Germany. Every single burnerundergoes a mechanical and electricalfunction test. The combination of technology with an effective quality-control system safeguards Weishaupt’sreknowned reputation for quality.

A new burner is always an investmentin the future. Costs need to be well-balanced against use, but the final deciding factors for long-term successare quality, technology and safety. Deciding on a Weishaupt burner is asafe investment in the future.

The very latest research and production methodsand rigourous quality control ensure the qualityfor which Weishaupt is reknowned

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A hallmark of practical combustion technology

5

A safe investment in the futureReliable and economical: The miilion-fold success of Weishaupt’s compactburners is the result of an unrelentingorientation towards quality and customersatisfaction. The technology has beenconstantly developed and improvedover decades.

The latest production methods and stringent quality checks of all productsensure Weishaupt’s reputation for quality. In choosing Weishaupt you aremaking a safe investment in the future.

Large capacity rangeThe large capacity range of 30 to550 kW makes the burners suitablefor a wide range of heat exchangers.

Electronic ignitionThe W-ZG 01 ignition unit used on allWeishaupt W-series burners is veryenergy efficient and extremely reliable.

Digital combustion management forreliability and ease of useWeishaupt is a pioneer in this field. Digital combustion management offersgreater ease of use and simple servicing,even greater relaibility in operation, and,last but not least, an extremely attractiveprice/capacity ratio. Furthermore, thisintelligent technology enables the burnerto be integrated with complex buildingmanagement systems.

Outstanding serviceWeishaupt has an extensive worldwidesales and sevice network. Customerservice is available around the clock.Optimal in-house training by Weishauptensures our service technicians are ofthe highest calibre.

Service caseThe Weishaupt servicing case for burnersizes up to WL20 combines the sensiblestorage of spare parts with optimal service readiness. All the parts neededfor repairs and service work are clearlyarranged in this handy and robust plastic case.

Proven quality All burners are tested by an independentbody and conform to the followingstandards and EU directives:

• EN 267• Machinery Directive 98/37/EC• Electromagnetic Compatability Directive 89/336/EEC• Low Voltage Directive 73/23/EEC• Boiler Efficiency Directive

92/42/EEC

LN version burners also comply with:• Germany’s Bundesimissions-

Schutzverordnung (Federal Imission Control Act - 1.BImSchV)

• Switzerland’s Luftreinhalte-Verordnung (Clean Air Act - LRV)

Coded plugs for safe electrical connection All components are easily accessible Simple commissioning and diagnosis

The right size Weishaupt burner for every application

Digital combustion management:reliable and easy to use

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All Weishaupt W series burners are fittedas standard with digital combustion managers, whose microprocessors control and monitor all burner functions.Consequently, Weishaupt burners areeasy to use, precise, and reliable.

The digital combustion managers alsooffer the possibility of communicatingwith other systems via an integratedeBUS port. This enables a heating engineer to monitor the operation ofthe burner and remotely diagnose any errors.

The key points:

• The utilisation of identical units forgas and oil-fired burners simplifiescommissioning and reduces thenumber of spares required.

• Non-interchangeable plugged connections ensure the correct electrical connection of all components

• Electrical remote reset is possible

• Safety is ensured through the use oftwo microprocessors (reciprocal monitoring)

• Vari-coloured LED lamp to indicateburner operational stage and faultconditions (WL10 and WL20)

• LCD display with interrogation, servicing, and parameterisationfunctions. The burner can be set directly via the operating keys(WL30 and WL40)

• Suitable for continuous operation ofhot water plant (controlled shutdownand restart every 24 hours)

• Suitable for air heaters and Group IIand III steam boilers

• The integrated eBUS interface offersthe following functions:

– Connection to a PC for display ofthe operational sequence and thesetting of functional parameters

– Remote monitoring and diagnosisvia a self-dialling modem

– Connection to modern building management systems

– Prepurge time can be set from aPC via the eBUS interface

Di gi ta l combustion managementGeneral system overview W-FM 05 W-FM 10 W-FM 20 W-FM 21

Controller for intermittent operation l l l l

Controller for continuous operation l

Flame sensor for intermittent operation QRB QRB QRB QRB

Flame sensor for continuous operation QRB

Servomotor with stepping motor l l l

Single-fuel operation l l l l

Removable operating unit (max. distance) 10 m 10 m

Fuel consumption meter l 1) l 1)

eBUS interface l l l l

Available on burner models WL10 WL10 WL30 WL30 WL20 WL 20 WL40 WL40 single-stage two-stage two-stage two-stage

1) in conjunction with VZ04 oil meter with pulsed output

7

P P

Example of digital combustion management on WL40

Air stepping motor

Ignition unit

Oil pump Safety valve Solenoid valve 1

Boilercontroller

Stage 2

Burner motor

Flame sensor

Data bus

Burner display

Solenoid valve 2

Trustworthy technology

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Even with its cover removed, the burneris visually impressive. All its componentsare clearly arranged, and the electricalconnections are obvious and non-inter-changeable. The technology makes agood impression because it is typicalWeishaupt.

Compact constructionThe WL burners’ compact constructionmeans they can be easily installed byone person. Installation costs havebeen reduced to a minimum.

Weishaupt nozzle-shut-off system All Low NOx burners are equipped withthe Weishaupt nozzle-shut-off system.This ensures a tight oil shut off at thenozzle assembly, preventing any dripsafter the burner has been switched off.

Low NOx versionThere are Low NOx versions availablefor all WL burners. A specially designedmixing head produces an intensive internal flue-gas reciriculation, resultingin exemplary emission levels.

Sound attenuated air inletThe transverse fan has a sound attenuated air inlet. These burners therefore operate particularly quietly.

Electronically controlled air damperThe electronically controlled air dampercloses at burner shutdown to hinder thecooling-down of the combustion chamber.

Sevicing positionA special bracket enables the burner tobe put into a servicing position, whichallows easy access to the burner andmixing assembly.

Common platformThe common platform principle usedwith W-series burners simplifies theprovision and storage of spare parts.

Diagnosis via laptopA special software package andconnection cables are available for interrogating the combustion manager.Combustion optimisation and fault analysis can thus be carried out easilyvia a laptop computer.

WL20 burner in the servicing position for easy access to the mixing assembly

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Oil line Valve piston Filter

Spill-oil line Fast-closing valve

Sound-absorbing air inlet housing

Weishaupt nozzle-shut-off system

Electronically controlled air damper Housing with components in the sevicing position: easy access to the fan wheel

Nozzle

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Example: WL30/WL40, version LN (Low NOx)

Combustion manager with connection plugs

Display bolt and diffusersetting screw

Servomotor with air-damper stepping motor

Oil pump with solenoid valve

Light sensor for flame monitoring

Burner display (WL30 and WL40)

Air-inlet housing

Oil hoses

Diffuser

Flame tube

Hinged flange (WL30 and WL40)

Diffuser display bolt Ignition electrodes

Model overview

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Burner type Version Mode of operation Rating Power Weight Order consumpt. No.

Standard WL10/2-D Single-stage 35 – 70 kW 0.13 kW 14.0 kg 241 111 22WL10/2-D Single-stage with servomotor 35 – 70 kW 0.13 kW 14.0 kg 241 111 20WL10/2-D Z Two-stage with servomotor 35 – 70 kW 0.13 kW 14.0 kg 241 111 23

WL10/3-D Single-stage 50 – 90 kW 0.13 kW 14.0 kg 241 110 31WL10/3-D Single-stage with servomotor 50 – 90 kW 0.13 kW 14.0 kg 241 110 30WL10/3-D Z Two-stage with servomotor 50 – 100 kW 0.13 kW 14.0 kg 241 110 32

WL20/1-C Single-stage 50 – 120 kW 0.25 kW 20.0 kg 241 210 21WL20/1-C Single-stage with servomotor 50 – 120 kW 0.25 kW 20.0 kg 241 210 11WL20/1-C Z Two-stage with servomotor 50 – 120 kW 0.25 kW 20.5 kg 241 213 21

WL20/2-C Single-stage 70 – 180 kW 0.25 kW 20.0 kg 241 210 22WL20/2-C Single-stage with servomotor 70 – 180 kW 0.25 kW 20.0 kg 241 210 12WL20/2-C Z Two-stage with servomotor 70 – 200 kW 0.25 kW 20.5 kg 241 213 22

WL30-C Z Two-stage 72 – 330 kW 0.42 kW 28.0 kg 241 313 21

WL40-A Z Two-stage 145 – 570 kW 0.62 kW 37.0 kg 241 403 21

Low NOx WL10/1-D 1LN 1LN Single-stage 30 – 55 kW 0.13 kW 14.0 kg 241 110 15

WL10/2-D 1LN 1LN Single-stage 50 – 70 kW 0.13 kW 14.0 kg 241 110 25

WL20/1-C 1LN Z-1LN Two-stage 55 – 130 kW 0.25 kW 20.5 kg 241 213 25

WL30Z-C 4LN 4LN Two-stage 72 – 215 kW 0.42 kW 28.0 kg 241 313 26

WL40Z-A 1LN 1LN Two-stage 120 – 355 kW 0.62 kW 37.0 kg 241 403 25

See price list for special equipment

1,2

25 30 40 45 50 55 60 65 70 75 100kW

2,5kg/h

1,00,80,60,40,20

-0,2-0,4-0,6

35 80 85 90 95

83 3,5 4 4,5 5 5,5 6 6,5 7 7,5

Burner selectionWL10 to WL40, standard version

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Burner type WL10/2-D WL10/2-D ZCombustion head W 10/2-D W 10/2-DRating 35 – 70 kW 35 – 70 kW 2.9 – 5.9 kg/h 2.9 – 5.9 kg/h

mbarWL10/2-D

1,2

25 30 40 45 50 55 60 65 70 75 100kW

2,5kg/h

1,00,80,60,40,20

-0,2-0,4-0,6

35 80 85 90 95

83 3,5 4 4,5 5 5,5 6 6,5 7 7,5

Burner type WL10/3-D WL10/3-D ZCombustion head W 10/3-D W 10/3-DRating 50 – 90 kW 50 – 100 kW 4.2 – 7.5 kg/h 4.2 – 8.4 kg/h

mbarWL10/3-D

3,0

25 50 100 125 150 175 200kW

3kg/h

2,52,01,51,00,50

-0,5

-1,575

164 5 6 7 8 9 10 11 12 13

-1,0

14 15 17

Burner type WL20/2-C WL20/2-C ZCombustion head W 20/2-C W 20/2-CRating 70 – 180 kW 70 – 200 kW 5.9 – 15.1 kg/h 5.9 – 16.8 kg/h

mbarWL20/2-C

3,0

25 50 100 125 150 175 200kW

3kg/h

2,52,01,51,00,50

-0,5

-1,575

164 5 6 7 8 9 10 11 12 13

-1,0

14 15 17

Burner type WL20/1-C WL20/1-C ZCombustion head W 20/1-C W 20/1-CRating 50 – 120 kW 50 – 120 kW 4.2 – 10.1 kg/h 4.2 – 10.1 kg/h

mbarWL20/1-C

7

50 100 200 250 300 350 600kW

5kg/h

6

5

4

3

2

1

0

-3150

10 15 20 25 30 35 40 45

-1

50

-2

400 450 500 550

Burner type WL40Z-ACombustion head W 40/1Rating 145 – 570 kW 12 – 48 kg/h

mbarWL40Z-A

7

50 100 200 250 300 350 600kW

5kg/h

6

5

4

3

2

1

0

-3150

10 15 20 25 30 35 40 45

-1

50

-2

400 450 500 550

Burner type WL30Z-CCombustion head W 30/2Rating 72 – 330 kW 6.1 – 27.9 kg/h

mbarWL30Z-C

Burner selectionWL10 to WL40, Low NOx version

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1,2

25 30 40 45 50 55 60 65 70 75kW

2,5kg/h

1,00,80,60,40,20

-0,2-0,4-0,6

35

3 3,5 4 4,5 5 5,5 6

Burner type WL10/1-D 1LN WL10/2-D 1LNCombustion head W 10/1-1LN W 10/2-1LNRating 30 – 55 kW 50 – 70 kW 2.5 – 4.6 kg/h 4.2 – 5.9 kg/h

mbarWL10/...-D 1LN

3,0

25 50 100 125 150kW

3kg/h

2,52,01,51,00,50

-0,5

-1,575

4 5 6 7 8 9 10 11 12

-1,0

1

Burner type WL20/1-C Z-1LNCombustion head W 20/1-C-1LNRating 55 – 130 kW 4.6 – 10.9 kg/h

mbarWL20/1-C Z-1LN

7

50 100 200 250 300 350kW

5kg/h

6

5

4

3

2

1

0

-3150

10 15 20 25 30

-1

-2

400

1

Burner type WL40Z-A 1LNCombustion head W 40/1 LNRating 120 – 355 kW 10 – 30 kg/h

mbarWL40Z-A 1LN

7

50 100 200 250kW

5kg/h

6

5

4

3

2

1

0

-3150

10 15

-1

-2

225175125

206 7 8 9 11 12 13 14 16 17 18 19

75

Burner type WL30Z-C 4LNCombustion head W 30/4 LNRating 72 – 215 kW 6.1 – 18.1 kg/h

mbarWL30Z-C 4LN

W L 20 / 1 - C Z - 1LN

Weishaupt W-series burnerL = Fuel oil EL

SizeCapacity

MarkTwo-stage

Low NOx

Model designation

Capacity graphs are certified in accordance with EN 267.

Stated ratings are based on an air temperature of 20 °Cand an installation of 500 m above sea level.

Stated oil throughputs are based on a calorific value of11.91 kWh/kg for fuel oil EL.

1 Limitation for Switzerland: For use with three-pass heat exchangers only.

Dimensions

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d2

d3d4

d1 h3

h2

l2 l1

b2

l3

l4

l5

l6

I8

l7

R1

R2

l1

d1

h1

b1

1 WL10, version 1LN combustion head

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Burner dimensions Burner type Dimensions in mm I1 I2 I3 I4 I5 I6 I7 I8 b1 b2 b3 h1 h2 h3 h4 d1 d2 d3 d4 d5 d6 R1 R2 α°

Standard

WL10/2-D 137 344 32 476 398 51 – – 330 165 – 353 270 165 – 99 M8 150 – 170 110 – – – – –

WL10/3-D 140 344 32 476 398 51 – – 330 165 – 353 270 165 – 108 M8 150 – 170 110 – – – – –

WL20/1-C 140 393 32 525 434 73 – – 358 179 – 376 285 182 183 108 M8 170 130 123 150 – – –

WL20/2-C 174 393 32 558 434 73 – – 358 179 – 376 285 182 183 120 M8 170 130 123 150 – – –

WL30Z-C 172 480 62 640 600 62 460 600 420 226 100 460 342 – – 127 M8 170 – 186 130 – – 158 490 45

WL40Z-A 242 577 72 801,5 615 72 480 615 450 245 108 480 360 – – 151 M10 186 – 200 160 – – 185 570 45

Low NOx

WL10/1-D 1LN 1 344 31,5 476 398 51 – – 330 165 – 353 270 165 – 100 M8 150 – 170 110 – – – – –

WL10/2-D 1LN 2 344 31,5 476 398 51 – – 330 165 – 353 270 165 – 108 M8 150 – 170 110 – – – – –

1 232 - 252 2 232 - 257

WL20/1-C 1LN 141 393 32 532 434 73 – – 358 179 – 376 285 182 183 108 M8 170 130 123 150 – – –

WL30Z-C 4LN 170 480 62 639 600 62 460 600 420 226 100 460 342 – – 127 M8 170 – 186 130 – – 158 490 45

WL40Z-A 1LN 238 577 72 795 615 72 480 615 450 245 108 480 360 – – 151 M10 186 – 200 160 – – 185 570 45

We’re right where you need us

Max Weis haupt GmbH88475 Schwen diTe l +49 7353 830 Fax +49 7353 83358www.weis haupt.de

Print No. 83205402, March 2011Printed in Germany. All rights reserved.

Neachells Lane, Willenhall, WV13 3RGTel (01902) 609841 Fax (01902) 633343

The security of a comprehensiveservice networkWeishaupt equipment is available fromgood HVAC specialists, with whomWeishaupt works in close partnership.To support the specialists, Weishauptmaintains a large sales and service network, ensuring equipment, sparesand service are always available.

Weishaupt are there when you needthem. The service department is available to Weishaupt customers around the clock, 365 days a year. AWeishaupt office near you is standingby to answer all your heating questions.